CVE-2026-104948 (GCVE-0-2026-104948)

Vulnerability from cvelistv5 – Published: 2026-10-21 13:53 – Updated: 2026-10-21 13:53
VLAI
Summary
WarehousePG (WHPG) 6.27.1 through 6.27.6 and 7.2.1 through 7.6.0 are affected by a missing authorization vulnerability (CWE-862) in the built-in cluster expansion functions gp_expand_lock_catalog() and gp_expand_bump_version(). Any authenticated database role can run them, and neither checks privileges. A low-privileged user can call gp_expand_lock_catalog() inside an open transaction to block all catalog changes across the cluster for every user, superusers included, until that transaction ends, which in practice requires a superuser to terminate the session. Blocked changes include DDL, temporary table creation, GRANT and CREATE ROLE. The same user can call gp_expand_bump_version() repeatedly. Each call disconnects sessions that hold temporary tables, with a FATAL error on their next catalog change, and makes every other session rebuild its segment connections.
Severity
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE
Assigner
EDB CNA under the mitre root
CNA scorecard – unranked: 9 records in the last 180 days, 10 needed details
References
Impacted products
Vendor Product Version CPE status
EnterpriseDB WarehousePG Affected: 6.27.1 , < 6.27.7 (semver)
Affected: 7.2.1 , < 7.6.1 (semver)
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        }
      ],
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        "orgId": "20be33e2-bf35-4d13-8fad-18bd2f3e3659",
        "shortName": "EDB"
      },
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    "datePublished": "2026-10-21T13:53:54.574Z",
    "dateReserved": "2026-10-02T17:51:49.010Z",
    "dateUpdated": "2026-10-21T13:53:54.574Z",
    "state": "PUBLISHED"
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          }
        ],
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        "lastModified": "2026-10-22T16:58:51.997",
        "metrics": {
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                "modifiedAttackRequirements": "NOT_DEFINED",
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                "modifiedPrivilegesRequired": "NOT_DEFINED",
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                "modifiedVulnIntegrityImpact": "NOT_DEFINED",
                "privilegesRequired": "LOW",
                "providerUrgency": "NOT_DEFINED",
                "subAvailabilityImpact": "NONE",
                "subConfidentialityImpact": "NONE",
                "subIntegrityImpact": "NONE",
                "userInteraction": "NONE",
                "valueDensity": "NOT_DEFINED",
                "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
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}



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